Water-tight vertically-sliding door.



Nm 64Z930.

v Patented Apr. 24, I900. V.ABSCHADULUFF. WATER TIGHT VEBTICALLY SLIDING DOOR (Application filed Dec. 6, 1899.) (No Model.) 2 Sheats-Shaet l.

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IN VEN rok WITNESSES:

A TTORNEYS l3. c4 THE nbnms PETERS cov. vuprauwa, WAEHKNGTON No. 647,930. Patented Apr. 24, 1900. V. ARSCHAOULOFF. WATEB TIGHT VEBTICALLY SLIDING DOOBQ (Application filed Dec. 6, 1899.)

2 Sheets-Sheat- 2.

(No Model.)

Fig: 5

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INVENTO}? A TTORNE Y c. m: Norms PETERS c0 PHOTO-LITHO.. WASHINGTON u UNITED STAT VADIM ARSOHAOULOFF, OF ST. PETERSBURG, RUSSIA WATER-TIG HT VERTlCALLY-SLIDING DOOR.

SPECIFICATION forming part of Letters Patent N 0. 647,930, dated April 24;, 1900.

Application filed December 6, 1899. fierial No. 739,433. N0 modelJ To all whom it may concern:

Be it known that I, VADIM ARSCHAOULOFF, a subject of the Emperor of Russia, and a resident of St. Petersburg, Russia, have invented certain new and useful Improvements in ater-Tight Vertically-Sliding Doors, of which the following is a specification.

The Water-tight vertically-sliding doors known up to this time are generally of such a character that the tightening of the joint depends upon a careful fitting of the contactsurfaces of the door and of its fixed frame. Such fitting constitutes a very delicate work, the efficiency of which can be injured by the least lesion of the fitted surfaces and even by the least warping of the bulkhead to which the door-frame is secured. If a more simple and effective system of tightening the doors is applied, consisting in a rubber packingstrip, the closing mechanism becomes considerably more complicated, because by the sliding-down motion of the door this latter must be maintained at a certain distance from the contact-surface of the fixed frame to avoid the flaying and damaging of the packing strip. Only when the door has reached the limit of its stroke can it be firmly pressed against the fixed frame; but the working con ditions of such water-tight 'doors require that their mechanism should be as simple as possible. v

The object of the present invention is to attain this purpose; and it consists of a limited number of parts,which are combined together positively and require for their actuating only a uniformworking of a crank-handle or the like, whichcauses at first the door to slide downward, and when this'latter has reached a determined position it is firmly pressed against the fixed frame in an automatic manner.

Figure l of the accompanying drawings represents a front elevational view of the improved door, the left-hand part of the figure showing the door in a raised or open position and the right-hand side in a lowered or closed position; Fig. 2, a side elevation of the door, the bulkhead being cut on a vertical plane; Fig. 3, a vertical axial section of the door; Fig. 4, a horizontal cross-section, on a larger scale, on line A B, Fig. 3. Figs. 5 and 6 are sectional views, on a larger scale, of the door and contiguous parts, Fig. 5 showing the door partly closed and Fig. 6 showing the same fully closed.

. The fixed frame a, constructed of angleirons, is secured to the bulkhead. Above this frame two standards or guides b of a similar cross-section are secured. To the outer sides of the frame a two vertical tubular sleeves c c are secured, having on theirinner sides a longitudinal slot, Figs. 5 and 6. In these sleeves vertical shafts cl d are fitted, having each a longitudinal groove 6. The upper ends of these shaft-s are journaled in sleeves f f of a cross-box g, secured to the standards I) b and serving as a casing for the actuating device. The door slides with its side edges in the grooves e e of the vertical shafts d cl, which serve to guide them. The downward and upward sliding movements are imparted to the door It by a vertical worm or screw t, whose lower end is journaled in a step-bearing is, secured on the upper crossbeam of the fixed .frame a. The upper end of the screw is journaled in a sleeve of the cross-box g. The screw 4. is actuated directly or by means of any suitable transmission device. g

The upper edge of the door h is bent inwardly and forms a fork, embracing a square nut Z, through which passes the screwt' in such a manner that the rotation of this latter causes the nut Z, and with it the door h, to rise or to descend in accordance with the direction of rotation of the screw.

On the upper extremities of the vertical shafts d d toothed conical sectors m m are secured, gearing with similar sectors n n, fixed on a horizontal shaft 0, journaled in the crossbox g. About the middle of this shaft two arms or levers pp are secured, having trunnions q q inserted'into their free extremities. These trunnions are engaged between two collars or shoulders of the screw '5.

During the upward or downward motion of the door the screw 2' bears upon the bottom of the step 7t and the arms 10 19 remain inclined downwardly and maintain, by the aid of sectors 'n n, engaging with the sectors m m, the vertical shafts cl cl in such a position that their longitudinal grooves e e and therewith the web of the door remain at a certain distance from the external rib of the fixed frame a, Fig. 5; but as soon as by the rotation of the screw 2' the door will descend to the position in which the nut Z will sit down upon the step k, the movement of the screw 2' being continued in the same direction, it begins to unscrew itself and rise up, while its collars will lift up the trunnions q g, which causes the levers p p to be pivoted upwardly and turn the horizontal shaft 0. This latter transmits the motion, by means of toothed sectors 42 n and m m, to the vertical shafts d d, so that their grooves e e, together with the door it itself, will approach to the fixed frame a, thus causing the rubber packing to be firmly compressed between the door it and its fixed frame a, Fig. 6. Thus a rotation of the screw 1' in one direction will cause the door to slide down and to be pressed firmly against the fixed frame. When the screw is driven in an opposite direction, the door begins first to move away from the fixed frame and then to slide upwardly.

I claim as my invention 1. The combination, with a vertical sliding water tight door, of two vertical rotative shafts, provided with longitudinal channels, or grooves, in which the edges of the door slide, the latter being raised or lowered by means of a screw and nut, located in the upframe and to secure a water-tight joint, substantially as described and shown.

2. In combination, a door, movable guides therefor, a screw adapted to be rotated, and

means operated by said screw for successively moving the door vertically and moving the guides to move said door transversely and vice versa, substantially as described.

3. In combination, a door, rotatable shafts having guides for said door, a screw adapted to move said door vertically, and means operated from said screw for rotating said shafts when the door is opposite the door-opening, substantially as described.

In witness whereof I have hereunto set my hand in presence of two witnesses.

VADIM ARSCHAOULOFF.

Witnesses:

N. TSCHEVOLOFF, J. BLAU. 

